Asbestos packing.



C. L. HILL.

ASBESTOS PACKING.

' APPLIOATION FILED s112119, 19,11.

1,035,190. Patented Aug. 13, 1912.

wxTNEssEs 3 3 J3 Ch l Lmvrvn es er L %0Zj El E E BY ATTORNEY vpacking that shall be cheap, durable and UNITED sTATEs PATENT oEEioE.

CHESTER L. HILL, OF MANHEIM, PENNSYLVANIA, ASSIGNOR T0 UNITED STATES ASBESTOS COMPANY, OF MANHEIM, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

ASBESTOS PACKING.

Specification of Letters Patent.

Patented Aug. 13, 1912.

Application filed September 19, 19411. Serial No. 650,085.

To all whom it may concern:

Be itknown that I, CHESTER L. HILL, a citizen of the United States, residing at Manheim, in the county ol Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Asbestos Packing, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to an asbestos packing for use in the forni of a gasket for packing the joints of machinery, and more particularly the heads of gas and steam engines and piping Where it is desired to use a packing that shall not only be tight and strong, but Which shall be capabley of repeated use, as by the novel construction of this packing, the joint may be repeatedly broken without injury tothe packing.

The object of the invention is to produce a eflicient.

Another object of the invention is to provide a packing that may be made up in special forms or in sheets and then cut in the usual Way to tit special joints.

Still another object is to produce a packing that shall be tire-proof to withstanding excessive heat and be formedwith one meA tallic face, thus providing a fieely breaking joint when the thicknesses of the same packing are placed in the joint with their metallic faces in contact with each other.

With these and other objects in view, my invention consists in certain construction and combination of parts as Will hereinafter be fully described and claimed in the annexed specification and claims, and illustrated in the accompanying drawings which form a part of this application, and in which like figures of reference refer to corresponding parts in all of the views; but it is fully understood that While I have here described myy invention as shown, that I do not confine myself to the exact design, `as slight changes may be made in the construction and arrangement of the several parts Without departing from the spirit of the invention.

In the drawingsz-Iigure 1, is lan end view of a portion of the packing before the same has been pressed in the process of manufacture. Fig. 2, is a view of the same after bein pressed and finished. Fig. 3, is a sectiona view of a machinery joint showing the sheets of packingl applied thereto to form a freely breaking joint. Fig. 4, is a top plan view of a portion of packing showing the different layers of material, and also showing a novel Way of preparing the nietallic sheet to facilitate the adhesion of the asbestos thereto. Fig. 5, is a sectional View of a sheet of packingshowing this construction.

Referring to the drawings: 1 indicates a thin sheet of copper or other suitable material which is first sized upon one surface with glue or other adhesive compound 2, and is then coated with a layer of locculent asbestos fiber 3, which is mixed with an adhesive compound, and the Whole is then compressed as shown in Figs. 2, and 3; the pressure applied being even and vertical, as a rolling pressure such as imparted by a set of rolls would tend to push or slide the asbestos from the metal, while a direct vertical pressure produces a packing of even thickness.

To render the adhesion of the asbestos and the metal 1, more permanent, the metal may be formed with a series of points 4, struck from the metal 1, and may also be perforated or formed with a series of holes 5; which, when the asbestos fiber is pressed thereon, the asbestos will enter said holes 5, and the orifice formed by striking up the points 4, and will also embrace said points 4; thus making it impossible to separate the metal 1, and the fiber 3, by ordinary handling or use, and providing a very strong and durable packing.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. As an article of manufacture, a packing composed of a layer of thin metal, and a ayer of asbestos fiber containing an adhesive secured thereto.

2. A fire-proof packing comprising a sheet of metal, a layer of sizing thereon, and a layer of asbestos ber containing an adhesive compound compressed thereon.

3. A lire-proof packing, comprising a sheet of metal, formed with a series of perforationstherein, a layer of asbestos liber containing an adhesive material, compressed upon said sheet of metal and entering said perforations.

4. As an article of manufacture, packing, comprising a sheet of thin metal,

a sheet points projecting from vthe surface of said.

sheet, and a layer of asbestos ber and adhesive compound' compressed upon said sheetv and embracing said polnts.

5. A fire-proof sheet packing, comprising ametallc sheet formed with a series of perforations, al series of points struck from Said adhesive compound `compressed Vup'on vsaid 'metallic sheet, and Within said lperforationsl and embracing said points. A l

Y In testimony whereof I ax my signature in 'presence of two Witnesses.

` CHESTER Ll. HILL;

Witnesses:

A S. R. ZIMMERMAN,

J. GUYESHLEMAN. 

